CVE-2021-24344Network attack vector

Stored script execution via unsanitized settings

Published Jun 7, 2021 · Updated Aug 3, 2024

Stored cross-site scripting in Easy Preloader 1.0.0 and earlier allows remote authenticated users to execute scripts via plugin settings. The plugin stores untrusted setting-field content without sanitizing it before that content is incorporated into generated pages. Administrator-level access is required to plant a payload, and execution occurs when another user loads affected content.

CVSS severity4.8
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Easy Preloader 1.0.0 and earlier allows remote authenticated users to execute scripts via plugin settings. The plugin stores untrusted setting-field content without sanitizing it before that content is incorporated into generated pages. Administrator-level access is required to plant a payload, and execution occurs when another user loads affected content.

The record

CVE
CVE-2021-24344
Published
Jun 7, 2021
Updated
Aug 3, 2024
Vendor
Arminas Bek
Product
Easy Preloader
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Arminas Bek · Easy Preloaderversion=1.0.0 <=1.0.0

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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